1. Install patch : EP0001-BLES00909_00-AC2TITLEUPDATE01-A0101-V0100-PE.pkg
2. Make empty folder ASSASSIN_ISO in USER DIR at BLES00909
3. Start Open Manager 2.1 +L2 patch to 3.41 ([C*] says: Or just edit the game's .sfo to 3.41)
4. Put some BD game
5. Start from BD icon
6. Wait for some mandatory install
7. Play the game and njoy

Tested 250GB Pal PL3+PSN iLLNESS. To be clear the folder has to be made in the folder of the game dump, not the update folder.